What could be wrong with my car? - 2

I have a 2003 ford escort zx2 sport and it won't start or start for a few seconds and sounds like it's out of gas and the pump is working you can hear it when the key is in the on position and I took the fuel filter out but it seems like there's fuel going through it just fine because I can't turn the car on to de pressurize so What was still in the line came out the other end of the filter

Lots of possible reasons